Hi Bud,
I try to practice every weekend, it usually works to every couple of weekends instead. Keep in mind this isn't for strength, this is for technique. Some of the stuff I can actually do in my own yard, mainly the WOB or the Stones.
The WFD, Hammer, and Caber all require that I go to the park. I usually start with stones, getting a good rhythm going. Then I move on to the WFD, WOB, Hammer, and Caber last.

More often, I just do a few each time as otherwise I get too sore after basically running my own games.
I also practice the WFD and WOB with a light weight, as the technique is basically the same and the lighter weight helps develop explosive speeds.